The original 'Teen Mom' cast, minus Farrah, is coming back for more

Teen Mom originals Maci Bookout, Amber Portwood and Catelynn Lowell are gearing up for a return to MTV in 2015.

It's been two years since they said their goodbyes, after four seasons of the show and their first 16 & Pregnant episodes back in 2009. Although their former castmate Farrah Abraham will not return (she's presumably off doing more important things, like trying to sing, talking about her porn video and giving relationship advice to Tori Spelling), the trio will once again let viewers into their lives, which they've all said have changed.

After she and then-boyfriend/now-fiancé Tyler Baltierra made the difficult decision to give up daughter Carly for adoption, the couple is now expecting another child and busy planning their wedding.

"I feel like documenting this pregnancy is totally different, because now it's our time to be parents," she told Us.

What Maci's up to

She's been dating boyfriend Taylor McKinney for two years and is about to graduate college, but she's already scored a job as a social media marketing specialist. Her son, Bentley, is 5.

"My family and I are in such a new and interesting place in our lives. I feel like I have grown up so much since the last time that I filmed anything for TV, so it will be very interesting to show viewers how our lives have evolved."

What Amber's up to

Portwood, whose troubles with drug addiction and domestic abuse were documented in the previous seasons of Teen Mom, says she's now on a better path. Her daughter, Leah, is now a 5-year-old kindergartner, and Portwood is looking to earn a degree. She also has a book, Never Too Late, out Aug. 26.

"I am currently enrolled in school but I have no idea what I want to major in yet."